JPS545751A - Information reader - Google Patents
Information readerInfo
- Publication number
- JPS545751A JPS545751A JP7085977A JP7085977A JPS545751A JP S545751 A JPS545751 A JP S545751A JP 7085977 A JP7085977 A JP 7085977A JP 7085977 A JP7085977 A JP 7085977A JP S545751 A JPS545751 A JP S545751A
- Authority
- JP
- Japan
- Prior art keywords
- information reader
- condensing
- holograms
- emitted
- narrow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Mechanical Optical Scanning Systems (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE: To narrow the dynamic range of photoelectric transducing systems, facilitate constitution and increase reliability by condensing the reflected light of the scanning holograms corresponding to the opening areas of respective condensing holograms and so setting the signal intensities being emitted that they become constant.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7085977A JPS545751A (en) | 1977-06-15 | 1977-06-15 | Information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7085977A JPS545751A (en) | 1977-06-15 | 1977-06-15 | Information reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS545751A true JPS545751A (en) | 1979-01-17 |
JPS5760609B2 JPS5760609B2 (en) | 1982-12-20 |
Family
ID=13443699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7085977A Granted JPS545751A (en) | 1977-06-15 | 1977-06-15 | Information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS545751A (en) |
-
1977
- 1977-06-15 JP JP7085977A patent/JPS545751A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5760609B2 (en) | 1982-12-20 |
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